the u.s., that question nagged at me a little bit, and i took out my computer, and i started outlining a better answer, and that ended up becoming something of an obsession. a couple years after that, it turned out that that outline had some value in the real world. i had co-founded an investment company called generation investment management, with my partner, david blood. i wanted to call it blood and gore, but -- [laughter] i hope you won't think less of me when i tell you that i really did want to call it that. [laughter] we used this outline as one of the inputs for our investment models, and it has worked pretty well, and then a couple years ago, it had grown to be so elaborate, i decided to turn it into a book, and i had a scoping exercise with some of the smartest people i could find who spent two days trying to sort of look over the horizon and help to get all of this in speer specktive, and i asked one of them at the start of it, kind of an emotional question, how do you feel about t